I had a lot of issues with movement, like it didn't want to register directions via WASD as instructed, but I launched around quite a bit and that mechanic was do-able.
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That is my bad! I think my instructions may have been misleading. I have updated the description on the game page now. The monkey is not able to move on ground. You can only move when you are holding something (so you are actually pulling you body by your arms). Bad instructions, sorry about that:))